A Bioeconomic Foundation of the Malthusian Equilibrium: Body Size and Population Size in the Long Run

TY - UNPB

T1 - A Bioeconomic Foundation of the Malthusian Equilibrium

T2 - Body Size and Population Size in the Long Run

AU - Dalgaard, Carl-Johan Lars

AU - Strulik, Holger

N1 - JEL Classification: O11, I12, J13

PY - 2007

Y1 - 2007

N2 - This paper develops a bioeconomic Malthusian growth model. By integrating recent research on allometric scaling, energy consumption and ontogenetic growth, we provide a model where subsistence consumption is endogenously linked to body size and fertility. The theory admits a unique Malthusian equilibrium in a two-dimensional state space characterized by population density and body size (metabolic rate) of the representative adult. As a result, the analysis allows us to examine the link between human biology, economic productivity, body size, and population size. Off the steady-state we investigate the possibility of cyclical behavior of the size of a population and the size of its representative member over the very long-run. We also demonstrate that a take-off into sustained growth should be associated with increasing income, population size and body size. The increase in the latter is, however, bounded and can be viewed as convergence to a biologically determined upper limit.

AB - This paper develops a bioeconomic Malthusian growth model. By integrating recent research on allometric scaling, energy consumption and ontogenetic growth, we provide a model where subsistence consumption is endogenously linked to body size and fertility. The theory admits a unique Malthusian equilibrium in a two-dimensional state space characterized by population density and body size (metabolic rate) of the representative adult. As a result, the analysis allows us to examine the link between human biology, economic productivity, body size, and population size. Off the steady-state we investigate the possibility of cyclical behavior of the size of a population and the size of its representative member over the very long-run. We also demonstrate that a take-off into sustained growth should be associated with increasing income, population size and body size. The increase in the latter is, however, bounded and can be viewed as convergence to a biologically determined upper limit.

M3 - Working paper

BT - A Bioeconomic Foundation of the Malthusian Equilibrium

PB - Hanover Leibniz University, School of Economics and Management

ER -